[Simh] Dec-10 Day announcement from Living Computers: Museum + Labs

[Johnny Billquist]

On 2017-12-13 08:49, Johnny Eriksson wrote:
> Johnny Billquist <bqt at softjar.se> wrote:
> 
>>> I was disappointed to learn that the RM05 was never supported, either.
>>
>> Hmm. Yeah, I can't remember ever seeing 18-bit packs or support on the RM05.
> 
> We had several RM05's on kicki back in those days.  Things needed:
> 
>    * Include drive geometry etc. in driver tables.

So I assume Tops-10 don't have it in the tables normally. Which drives 
did Tops-10 support officially?

>    * Make sure the controller in the drive (same HW as RM03 if I remember
>      correctly, but sitting in a separate cabinet beside the drive) has
>      the appropriate jumper installed in the backplane to enable 18-bit
>      mode.

I didn't know it was the exact same Massbus adapter for the drive. I 
know that the RM02/RM03 have the adapter in the bottom of the cabinet, 
while the RM05 have it in a separate cabinet (probably because the drive 
itself takes more space in the cabinet).
And the RM03 is supported by Tops-10 then, I take it.

>    * Format the pack in 18-bit mode.  We did that with a user-mode program
>      using the write-data-and-headers I/O function.  I have the source to
>      that (short) program somewhere.

Hmm. I suspect the code for formatting an RM03 could be used as a 
starting point?

> Support?  Don't think so...

:-)

>>     Johnny
> 
> --Johnny (the other one)

Hah! I should have know who to ask about such a topic... ;-)

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol